Water Supply презентация

Июль 27, 2021

Содержание

2. Water Supply Components Source of Supply
3. Water Supply Components Water processing facilities
4. Water Supply Components Means of moving Water
5. Water Supply Components Distribution and Storage System
6. Water Supply Distribution System Primary Feeders Large pipes 400mm (16”) Brings large amounts of water to
7. Water Supply Distribution System Distributors Grid of smaller mains 200mm (8”) supplying hydrants and blocks
8. Water Supply Hydrants Stem Nut 65mm Caps Steamer Cap 100-200mm Operating Stem (Internal) Main Valve and
9. Water Supply Hydrant Colour Codes Class AA – Light blue 5,000 LPM (1,500 gpm) or greater
10. Water Supply Hydrant Colour Codes Class C – Red less than 1,900 LPM (500 gpm) Dead
11. Water Supply Hydrants Locations 90m (300 ft) in high value areas Basic Rule: Near each street
12. Water Supply Pressures Static Water is not moving. It is the potential energy available to force
13. Water Supply Pressures Residual The pressure left in a distribution system at a specific location when
14. Water Supply Alternative Sources Yard Hydrants Hose Hydrants Draft Sources Cisterns/Pools Rivers/Lakes/Ponds Ditches/Creeks
15. Water Supply Rural Water Supply Ponds Wells Swimming pools Cisterns Ditches Rivers/Creeks Tankers Pumpers Hydrants
16. Water Supply Considerations Resistance or friction loss in municipal systems Corrosion Chemicals in water Sediment Pipe
17. Water Supply Hydrants Open and Close Slowly Open or Close Fully Drain Completely Know open and
18. Water Supply Drafting Equipment Needed Portable pump Hard suction hose with strainer Fire hose Static water
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Слайд 2

Water Supply Components
Source of Supply

Слайд 3

Water Supply Components
Water processing facilities

Слайд 4

Water Supply Components
Means of moving Water

Слайд 5

Water Supply Components
Distribution and Storage System

Слайд 6

Water Supply Distribution System
Primary Feeders
Large pipes 400mm (16”)
Brings large amounts of water to

different points of a water system
Secondary Feeders
Intermediate pipes 300mm (12”)
Pipes that form a grid between the primary pipes

Слайд 7

Water Supply Distribution System
Distributors
Grid of smaller mains 200mm (8”) supplying hydrants and blocks

Слайд 8

Water Supply Hydrants
Stem Nut
65mm Caps
Steamer Cap 100-200mm
Operating Stem
(Internal)
Main Valve

and Drain

(Underground, below Frost line)

Types
Dry Barrel
Wet Barrel

Слайд 9

Water Supply Hydrant Colour Codes
Class AA – Light blue 5,000 LPM (1,500 gpm) or

greater
Class A – Green 3,785 – 5675 LPM (1,000-1,499 gpm)
Class B – Orange 1,900-3780 LPM (500-999 gpm)

Слайд 10

Water Supply Hydrant Colour Codes
Class C – Red less than 1,900 LPM (500 gpm)

Dead End– Black Sttipe or Grey – not reliable

Слайд 11

Water Supply Hydrants
Locations
90m (300 ft) in high value areas
Basic Rule:
Near each street intersection
Pre-Plan

your areas

Слайд 12

Water Supply Pressures
Static
Water is not moving. It is the potential energy available to force

water through a pipe.
Normal Operating Pressure
The normal pressure found in a distribution system during a period of normal consumption

Слайд 13

Water Supply Pressures
Residual
The pressure left in a distribution system at a specific location when

a quantity of water is flowing
Flow
The forward velocity pressure at a discharge opening

Слайд 14

Water Supply Alternative Sources
Yard Hydrants
Hose Hydrants
Draft Sources
Cisterns/Pools
Rivers/Lakes/Ponds
Ditches/Creeks

Слайд 15

Water Supply Rural Water Supply
Ponds
Wells
Swimming pools
Cisterns
Ditches
Rivers/Creeks
Tankers
Pumpers
Hydrants

Слайд 16

Water Supply Considerations
Resistance or friction loss in municipal systems
Corrosion
Chemicals in water
Sediment
Pipe size and length
Water

hammer

Слайд 17

Water Supply Hydrants
Open and Close
Slowly
Open or Close
Fully
Drain Completely
Know open and close
direction before trying

Слайд 18

Water Supply Drafting
Equipment Needed
Portable pump
Hard suction hose with strainer
Fire hose
Static water source